Herbicide label

Refer 280 SL

Refer 280 SL (EPA 82534-4-88783) is a Group 10 glufosinate herbicide labeled for 9 crops. The label lists 121 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“Refer® 280 SL is a non-selective herbicide.”

— Refer 280 SL EPA label, Reg. No. 82534-4-88783

Refer 280 SL label facts

Product Refer 280 SL
EPA Reg. No. 82534-4-88783
Distributor Summit Agro USA LLC
Active ingredient glufosinate
MOA group 10

Crops on the Refer 280 SL label

Refer 280 SL is labeled for these 9 crops and uses, per the EPA label.

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Weeds on the Refer 280 SL label

The Refer 280 SL label names 131 weeds and rates each by how the product handles it: full control, partial control, suppression, or control with a tank-mix partner. A weed can fall at more than one level, because control varies by crop, rate, and timing.

Controls

full control121

alfalfa
amaranth, palmer
anoda, spurred
barley
barnyardgrass, common
bedstraw, catchweed
beggarweed, florida
bermudagrass
bindweed, field
bindweed, hedge
black medic
bluegrass, annual
bluegrass, kentucky
blueweed, texas
bromegrass, smooth
buckwheat, wild
buffalobur
burcucumber
burdock
volunteer canola
carpetweed
chickweed, common
chickweed, mouse-ear
clover, red
cocklebur, common
copperleaf, hophornbeam
corn, volunteer
crabgrass, large
crabgrass, smooth
croton, tropic
croton, woolly
cupgrass, woolly
dandelion
devil's claw
dock, smooth
eclipta
fleabane, annual
foxtail, bristly
foxtail, giant
foxtail, green
foxtail, robust purple
foxtail, yellow
galinsoga, hairy
galinsoga, small flower
geranium, cutleaf
goosegrass
groundcherry, cutleaf
hempnettle
horsenettle
jimsonweed
rhizome johnsongrass
johnsongrass, seedling
junglerice
knotweed
kochia
ladysthumb
lambsquarters, common
mallow, common
mallow, venice
marshelder, annual
millet, proso volunteer
millet, wild-proso
morningglory, entireleaf
morningglory, ivyleaf
morningglory, pitted
morningglory, sharppod
morningglory, smallflower
morningglory, tall
mustard, wild
nightshade, black
nightshade, eastern black
nightshade, hairy
nightshade, silverleaf
wild oats
orchardgrass
panicum, fall
panicum, texas
pennycress, field
pigweed, prostrate
pigweed, redroot
pigweed, smooth
pigweed, spiny
pigweed, tumble
poinsettia, wild
pokeweed, common
puncturevine
purslane, common
pusley, florida
ragweed, common
ragweed, giant
red rice
rice, volunteer
sandbur, field
senna coffee
sesbania, hemp
shattercane
shepherd's-purse
sicklepod
sida, prickly
signalgrass, broadleaf
smartweed, pennsylvania
smellmelon
sorghum, volunteer
sowthistle, annual
sowthistle, perennial
sprangletop
spurge, prostrate
spurge, spotted
starbur, bristly
stinkgrass
sunflower, annual
sunflower, prairie
sunflower, volunteer
thistle, bull
thistle, canada
thistle, russian
velvetleaf
waterhemp, common
volunteer wheat
witchgrass
wormwood, biennial

Suppression

suppression10

dogbane, hemp
goldenrod, gray
horseweed
milkweed, common
milkweed, honeyvine
muhly, wirestem
nutsedge, purple
nutsedge, yellow
quackgrass
timothy

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Refer 280 SL rates and plant-back

The label answers both with a table, not a single number. Here is what drives each answer.

Application rate

Your rate depends on your crop.

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Plant-back and rotation

Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, and WY.

Get the interval for your rotation: build a program and FieldMarshal gives you the exact plant-back for your rotational crop from the label line.

Refer 280 SL FAQ

What weeds does Refer 280 SL control?

The Refer 280 SL label names 131 weeds, including alfalfa, palmer amaranth, spurred anoda, barley, common barnyardgrass, and catchweed bedstraw. Control varies by crop, rate, and timing.

What crops is Refer 280 SL labeled for?

Refer 280 SL is labeled for 9 crops and uses, including field corn, soybeans, cotton, sugar beet, and canola.

What is the active ingredient in Refer 280 SL? Is it a generic?

Refer 280 SL's active ingredient is glufosinate (MOA Group 10). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

What's the plant-back interval after Refer 280 SL?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal gives you the exact interval for your rotation from the label line, so you can verify it.

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Can I tank-mix Refer 280 SL?

It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and gives the condition on each, so you can verify it.